Nicholas Watt: Barack Obama and David Cameron did strike different chords in some areas. But there was no Ted Heath / Richard Nixon frostiness just as there is no Margaret Thatcher / Ronald Reagan love-in

Robert Halfon, one of the smartest new Tory MPs, raised an intriguing parallel today. He said that the defection to Britain of Moussa Koussa, the Libyan foreign minister, by a private jet from Tunisia is on a par with the famous flight to Scotland of Rudolf Hess, Adolf Hitler's deputy, almost exactly 70 years ago

Tories were too polite to ask whether it was wise of the prime minister to pose at a time of war with the man who utters the famous words in The Terminator – 'The Uzi nine millimeter' – as he orders a series of weapons from a gun shop.